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CCENT: Cisco® Certified Entry Networking Technician Study Guide

Book Description

Start your preparation for Cisco's new CCENT entry-level networking certification, your entry point into Cisco's popular CCNA certification track. This comprehensive study guide from leading Cisco authority Todd Lammle thoroughly prepares you for the Interconnecting Cisco Networking Devices, Part 1 exam (640-822) and the start of a career, with pages of exam essentials, real-world scenarios, and hands-on exercises. Topics include the operation of data networks, how to implement both switched and routed networks, and much more.

Table of Contents

  1. Copyright
  2. Dear Reader:
  3. Acknowledgments
  4. About the Author
  5. Introduction
      1. Cisco's Network Support Certifications
        1. Cisco Certifications
        2. Cisco Certified Entry Network Technician (CCENT)
        3. Cisco Certified Network Associate (CCNA)
        4. Why Become CCENT/CCNA Certified?
      2. Where Do You Take the Exams?
      3. Tips for Taking Your CCENT Exam
      4. What Does This Book Cover?
      5. How to Use This Book
      6. What's on the CD?
        1. The Sybex Test Preparation Software
        2. Electronic Flashcards for PC, Pocket PC, and Palm Devices
        3. CCENT: Cisco Certified Entry Networking Technician Study Guide in PDF
        4. Todd Lammle Videos
        5. Todd Lammle Audios
      7. How to Contact the Author
  6. Assessment Test
  7. Answers to Assessment Test
  8. 1. Internetworking
    1. 1.1. Internetworking Basics
      1. 1.1.1. Addressing
      2. 1.1.2. Hubs, Bridges, Routers, and Switches
    2. 1.2. Internetworking Models
      1. 1.2.1. The Layered Approach
      2. 1.2.2. Advantages of Reference Models
    3. 1.3. The OSI Reference Model
      1. 1.3.1. The Application Layer
      2. 1.3.2. The Presentation Layer
      3. 1.3.3. The Session Layer
      4. 1.3.4. The Transport Layer
        1. 1.3.4.1. Flow Control
        2. 1.3.4.2. Connection-Oriented Communication
        3. 1.3.4.3. Windowing
        4. 1.3.4.4. Acknowledgments
      5. 1.3.5. The Network Layer
      6. 1.3.6. The Data Link Layer
        1. 1.3.6.1. Switches and Bridges at the Data Link Layer
        2. 1.3.6.2. Binary to Decimal and Hexadecimal Conversion
      7. 1.3.7. The Physical Layer
        1. 1.3.7.1. Hubs at the Physical Layer
    4. 1.4. Ethernet Networking
      1. 1.4.1. Half- and Full-Duplex Ethernet
      2. 1.4.2. Ethernet at the Data Link Layer
        1. 1.4.2.1. Ethernet Addressing
        2. 1.4.2.2. Ethernet Frames
      3. 1.4.3. Ethernet at the Physical Layer
    5. 1.5. Ethernet Cabling
      1. 1.5.1. Straight-Through Cable
      2. 1.5.2. Crossover Cable
      3. 1.5.3. Rolled Cable
    6. 1.6. Data Encapsulation
    7. 1.7. The Cisco Three-Layer Hierarchical Model
      1. 1.7.1. The Core Layer
      2. 1.7.2. The Distribution Layer
      3. 1.7.3. The Access Layer
    8. 1.8. Summary
    9. 1.9. Exam Essentials
    10. 1.10. Written Lab 1
      1. 1.10.1. Written Lab 1.1: OSI Questions
      2. 1.10.2. Written Lab 1.2: Defining the OSI Layers and Devices
      3. 1.10.3. Written Lab 1.3: Identifying Collision and Broadcast Domains
      4. 1.10.4. Written Lab 1.4: Binary/Decimal/Hexadecimal Conversion
    11. 1.11. Review Questions
    12. 1.12. Answers to Review Questions
    13. 1.13. Answers to Written Lab 1
      1. 1.13.1. Answer to Written Lab 1.2
      2. 1.13.2. Answers to Written Lab 1.3
      3. 1.13.3. Answers to Written Lab 1.4
  9. 2. Internet Protocols
    1. 2.1. TCP/IP and the DoD Model
      1. 2.1.1. The Process/Application Layer Protocols
        1. 2.1.1.1. Telnet
        2. 2.1.1.2. File Transfer Protocol (FTP)
        3. 2.1.1.3. Trivial File Transfer Protocol (TFTP)
        4. 2.1.1.4. Network File System (NFS)
        5. 2.1.1.5. Simple Mail Transfer Protocol (SMTP)
        6. 2.1.1.6. Line Printer Daemon (LPD)
        7. 2.1.1.7. X Window
        8. 2.1.1.8. Simple Network Management Protocol (SNMP)
        9. 2.1.1.9. Domain Name Service (DNS)
        10. 2.1.1.10. Dynamic Host Configuration Protocol (DHCP)/Bootstrap Protocol (BootP)
      2. 2.1.2. The Host-to-Host Layer Protocols
        1. 2.1.2.1. Transmission Control Protocol (TCP)
          1. 2.1.2.1.1. TCP Segment Format
        2. 2.1.2.2. User Datagram Protocol (UDP)
          1. 2.1.2.2.1. UDP Segment Format
        3. 2.1.2.3. Key Concepts of Host-to-Host Protocols
        4. 2.1.2.4. Port Numbers
          1. 2.1.2.4.1. TCP Session: Source Port
          2. 2.1.2.4.2. TCP Session: Destination Port
          3. 2.1.2.4.3. TCP Session: Syn Packet Acknowledgment
      3. 2.1.3. The Internet Layer Protocols
        1. 2.1.3.1. Internet Protocol (IP)
        2. 2.1.3.2. Internet Control Message Protocol (ICMP)
        3. 2.1.3.3. Address Resolution Protocol (ARP)
        4. 2.1.3.4. Reverse Address Resolution Protocol (RARP)
        5. 2.1.3.5. Proxy Address Resolution Protocol (Proxy ARP)
    2. 2.2. IP Addressing
      1. 2.2.1. IP Terminology
      2. 2.2.2. The Hierarchical IP Addressing Scheme
        1. 2.2.2.1. Network Addressing
          1. 2.2.2.1.1. Network Address Range: Class A
          2. 2.2.2.1.2. Network Address Range: Class B
          3. 2.2.2.1.3. Network Address Range: Class C
          4. 2.2.2.1.4. Network Address Ranges: Classes D and E
          5. 2.2.2.1.5. Network Addresses: Special Purpose
        2. 2.2.2.2. Class A Addresses
          1. 2.2.2.2.1. Class A Valid Host IDs
        3. 2.2.2.3. Class B Addresses
          1. 2.2.2.3.1. Class B Valid Host IDs
        4. 2.2.2.4. Class C Addresses
          1. 2.2.2.4.1. Class C Valid Host IDs
      3. 2.2.3. Private IP Addresses
    3. 2.3. Broadcast Addresses
    4. 2.4. Summary
    5. 2.5. Exam Essentials
    6. 2.6. Written Lab 2
    7. 2.7. Review Questions
    8. 2.8. Answers to Review Questions
    9. 2.9. Answers to Written Lab 2
  10. 3. IP Subnetting, Variable Length Subnet Masks (VLSMs), Troubleshooting IP, and Introduction to NAT
    1. 3.1. Subnetting Basics
      1. 3.1.1. IP Subnet-Zero
      2. 3.1.2. How to Create Subnets
      3. 3.1.3. Subnet Masks
      4. 3.1.4. Classless Inter-Domain Routing (CIDR)
      5. 3.1.5. Subnetting Class C Addresses
        1. 3.1.5.1. Subnetting a Class C Address: The Fast Way!
        2. 3.1.5.2. Subnetting Practice Examples: Class C Addresses
          1. 3.1.5.2.1. Practice Example #1C: 255.255.255.128 (/25)
          2. 3.1.5.2.2. Practice Example #2C: 255.255.255.192 (/26)
          3. 3.1.5.2.3. Practice Example #3C: 255.255.255.224 (/27)
          4. 3.1.5.2.4. Practice Example #4C: 255.255.255.240 (/28)
          5. 3.1.5.2.5. Practice Example #5C: 255.255.255.248 (/29)
          6. 3.1.5.2.6. Practice Example #6C: 255.255.255.252 (/30)
        3. 3.1.5.3. Subnetting in Your Head: Class C Addresses
        4. 3.1.5.4. What Do We Know?
      6. 3.1.6. Subnetting Class B Addresses
        1. 3.1.6.1. Subnetting Practice Examples: Class B Addresses
          1. 3.1.6.1.1. Practice Example #1B: 255.255.128.0 (/17)
          2. 3.1.6.1.2. Practice Example #2B: 255.255.192.0 (/18)
          3. 3.1.6.1.3. Practice Example #3B: 255.255.240.0 (/20)
          4. 3.1.6.1.4. Practice Example #4B: 255.255.254.0 (/23)
          5. 3.1.6.1.5. Practice Example #5B: 255.255.255.0 (/24)
          6. 3.1.6.1.6. Practice Example #6B: 255.255.255.128 (/25)
          7. 3.1.6.1.7. Practice Example #7B: 255.255.255.192 (/26)
          8. 3.1.6.1.8. Practice Example #8B: 255.255.255.224 (/27)
        2. 3.1.6.2. Subnetting in Your Head: Class B Addresses
      7. 3.1.7. Subnetting Class A Addresses
        1. 3.1.7.1. Subnetting Practice Examples: Class A Addresses
          1. 3.1.7.1.1. Practice Example #1A: 255.255.0.0 (/16)
          2. 3.1.7.1.2. Practice Example #2A: 255.255.240.0 (/20)
          3. 3.1.7.1.3. Practice Example #3A: 255.255.254.0 (/23)
          4. 3.1.7.1.4. Practice Example #4A: 255.255.255.192 (/26)
        2. 3.1.7.2. Subnetting in Your Head: Class A Addresses
    2. 3.2. Variable Length Subnet Masks (VLSMs)
      1. 3.2.1. VLSM Design
      2. 3.2.2. Implementing VLSM Networks
      3. 3.2.3. Can You VLSM in Your Head to Fix a Design?
    3. 3.3. Troubleshooting IP Addressing
      1. 3.3.1. Determining IP Address Problems
    4. 3.4. Introduction to Network Address Translation (NAT)
    5. 3.5. Types of Network Address Translation
    6. 3.6. NAT Names
    7. 3.7. How NAT Works
    8. 3.8. Summary
    9. 3.9. Exam Essentials
    10. 3.10. Written Labs 3
      1. 3.10.1. Written Lab 3.1: Written Subnet Practice #1
      2. 3.10.2. Written Lab 3.2: Written Subnet Practice #2
      3. 3.10.3. Written Lab 3.3: Written Subnet Practice #3
    11. 3.11. Review Questions
    12. 3.12. Answers to Review Questions
    13. 3.13. Answers to Written Lab 3.1
    14. 3.14. Answers to Written Lab 3.2
    15. 3.15. Answers to Written Lab 3.3
  11. 4. Introduction to the Cisco IOS and SDM
    1. 4.1. The IOS User Interface
      1. 4.1.1. Cisco Router IOS
      2. 4.1.2. Connecting to a Cisco Router
      3. 4.1.3. Bringing Up a Router
        1. 4.1.3.1. Bringing Up a Non-ISR Router (a 2600)
    2. 4.2. Command-Line Interface (CLI)
      1. 4.2.1. Entering the CLI from a Non-ISR Router
      2. 4.2.2. Overview of Router Modes
      3. 4.2.3. CLI Prompts
        1. 4.2.3.1. Interfaces
        2. 4.2.3.2. Subinterfaces
        3. 4.2.3.3. Line Commands
        4. 4.2.3.4. Routing Protocol Configurations
        5. 4.2.3.5. Defining Router Terms
      4. 4.2.4. Editing and Help Features
      5. 4.2.5. Gathering Basic Routing Information
    3. 4.3. Router and Switch Administrative Configurations
      1. 4.3.1. Hostnames
      2. 4.3.2. Banners
      3. 4.3.3. Setting Passwords
        1. 4.3.3.1. Enable Passwords
        2. 4.3.3.2. Auxiliary Password
        3. 4.3.3.3. Console Password
        4. 4.3.3.4. Telnet Password
        5. 4.3.3.5. Setting Up Secure Shell (SSH)
        6. 4.3.3.6. Verifying the SSH service on your router
      4. 4.3.4. Encrypting Your Passwords
      5. 4.3.5. Descriptions
        1. 4.3.5.1. Doing the do Command
    4. 4.4. Router Interfaces
      1. 4.4.1. Bringing Up an Interface
        1. 4.4.1.1. Configuring an IP Address on an Interface
        2. 4.4.1.2. Configuring DHCP on your router
        3. 4.4.1.3. Using the Pipe
        4. 4.4.1.4. Serial Interface Commands
    5. 4.5. Viewing, Saving, and Erasing Configurations
      1. 4.5.1. Deleting the Configuration and Reloading the Router
      2. 4.5.2. Verifying Your Configuration
        1. 4.5.2.1. Verifying with the show interface Command
        2. 4.5.2.2. Verifying with the show ip interface Command
        3. 4.5.2.3. Using the show ip interface brief Command
        4. 4.5.2.4. Verifying with the show protocols Command
        5. 4.5.2.5. Using the show controllers Command
    6. 4.6. Cisco's Security Device Manager (SDM)
    7. 4.7. Summary
    8. 4.8. Exam Essentials
    9. 4.9. Written Lab 4
    10. 4.10. Hands-on Labs
      1. 4.10.1. Hands-on Lab 4.1: Logging into a Router
      2. 4.10.2. Hands-on Lab 4.2: Using the Help and Editing Features
      3. 4.10.3. Hands-on Lab 4.3: Saving a Router Configuration
      4. 4.10.4. Hands-on Lab 4.4: Setting Your Passwords
      5. 4.10.5. Hands-on Lab 4.5: Setting the Hostname, Descriptions, IP Address, and Clock Rate
      6. 4.10.6. Hands-on Lab 4.6: Installing SDM on Your Computer
    11. 4.11. Review Questions
    12. 4.12. Answers to Review Questions
    13. 4.13. Answers to Written Lab 4
  12. 5. Managing a Cisco Internetwork
    1. 5.1. The Internal Components of a Cisco Router
    2. 5.2. The Router Boot Sequence
    3. 5.3. Managing Configuration Register
      1. 5.3.1. Understanding the Configuration Register Bits
      2. 5.3.2. Checking the Current Configuration Register Value
      3. 5.3.3. Changing the Configuration Register
      4. 5.3.4. Recovering Passwords
        1. 5.3.4.1. Interrupting the Router Boot Sequence
        2. 5.3.4.2. Changing the Configuration Register
          1. 5.3.4.2.1. Cisco ISR/2600 Series Commands
          2. 5.3.4.2.2. Cisco 2500 Series Commands
        3. 5.3.4.3. Reloading the Router and Entering Privileged Mode
        4. 5.3.4.4. Viewing and Changing the Configuration
        5. 5.3.4.5. Resetting the Configuration Register and Reloading the Router
      5. 5.3.5. Boot System Commands
    4. 5.4. Backing Up and Restoring the Cisco IOS
      1. 5.4.1. Verifying Flash Memory
      2. 5.4.2. Backing Up the Cisco IOS
      3. 5.4.3. Restoring or Upgrading the Cisco Router IOS
      4. 5.4.4. Using the Cisco IOS File System (Cisco IFS)
        1. 5.4.4.1. Using the Cisco IFS to Upgrade an IOS
      5. 5.4.5. Using the SDM to Manage the Flash Memory
    5. 5.5. Backing Up and Restoring the Cisco Configuration
      1. 5.5.1. Backing Up the Cisco Router Configuration
        1. 5.5.1.1. Verifying the Current Configuration
        2. 5.5.1.2. Verifying the Stored Configuration
        3. 5.5.1.3. Copying the Current Configuration to NVRAM
        4. 5.5.1.4. Copying the Configuration to a TFTP Server
      2. 5.5.2. Restoring the Cisco Router Configuration
      3. 5.5.3. Erasing the Configuration
      4. 5.5.4. Using the Cisco IOS File System to Manage Your Router's Configuration (Cisco IFS)
      5. 5.5.5. Using the SDM to Back Up/Restore and Edit the Router's Configuration
    6. 5.6. Using Cisco Discovery Protocol (CDP)
      1. 5.6.1. Getting CDP Timers and Holdtime Information
      2. 5.6.2. Gathering Neighbor Information
      3. 5.6.3. Gathering Interface Traffic Information
      4. 5.6.4. Gathering Port and Interface Information
      5. 5.6.5. Documenting a Network Topology Using CDP
    7. 5.7. Using Telnet
      1. 5.7.1. Telnetting into Multiple Devices Simultaneously
      2. 5.7.2. Checking Telnet Connections
      3. 5.7.3. Checking Telnet Users
      4. 5.7.4. Closing Telnet Sessions
      5. 5.7.5. Using SDM to Telnet into Your Router
    8. 5.8. Resolving Hostnames
      1. 5.8.1. Building a Host Table
      2. 5.8.2. Using DNS to Resolve Names
    9. 5.9. Checking Network Connectivity and Troubleshooting
      1. 5.9.1. Using the ping Command
        1. 5.9.1.1. Pinging with SDM
      2. 5.9.2. Using the traceroute Command
      3. 5.9.3. Debugging
      4. 5.9.4. Using the show processes Command
    10. 5.10. Summary
    11. 5.11. Exam Essentials
    12. 5.12. Written Lab 5
    13. 5.13. Hands-on Labs
      1. 5.13.1. Hands-on Lab 5.1: Backing Up Your Router IOS
      2. 5.13.2. Hands-on Lab 5.2: Upgrading or Restoring Your Router IOS
      3. 5.13.3. Hands-on Lab 5.3: Backing Up the Router Configuration
      4. 5.13.4. Hands-on Lab 5.4: Using the Cisco Discovery Protocol (CDP)
      5. 5.13.5. Hands-on Lab 5.5: Using Telnet
      6. 5.13.6. Hands-on Lab 5.6: Resolving Hostnames
    14. 5.14. Review Questions
    15. 5.15. Answers to Review Questions
    16. 5.16. Answers to Written Lab 5
  13. 6. IP Routing
    1. 6.1. Routing Basics
    2. 6.2. The IP Routing Process
      1. 6.2.1. Testing Your IP Routing Understanding
      2. 6.2.2. Configuring IP Routing
        1. 6.2.2.1. Corp Configuration
        2. 6.2.2.2. R1 Configuration
        3. 6.2.2.3. R2 Configuration
        4. 6.2.2.4. R3 Configuration
        5. 6.2.2.5. 871W Configuration
        6. 6.2.2.6. 1242AP Configuration
    3. 6.3. Configuring IP Routing in Our Network
      1. 6.3.1. Static Routing
        1. 6.3.1.1. Corp
        2. 6.3.1.2. R1
        3. 6.3.1.3. R2
        4. 6.3.1.4. R3
        5. 6.3.1.5. 871W
        6. 6.3.1.6. Verifying Your Configuration
      2. 6.3.2. Default Routing
    4. 6.4. Dynamic Routing
      1. 6.4.1. Routing Protocol Basics
        1. 6.4.1.1. Administrative Distances
        2. 6.4.1.2. Routing Protocols
    5. 6.5. Distance-Vector Routing Protocols
      1. 6.5.1. Routing Loops
        1. 6.5.1.1. Maximum Hop Count
        2. 6.5.1.2. Split Horizon
        3. 6.5.1.3. Route Poisoning
        4. 6.5.1.4. Holddowns
    6. 6.6. Routing Information Protocol (RIP)
      1. 6.6.1. RIP Timers
      2. 6.6.2. Configuring RIP Routing
        1. 6.6.2.1. Corp
        2. 6.6.2.2. R1
        3. 6.6.2.3. R2
        4. 6.6.2.4. R3
        5. 6.6.2.5. 871W
      3. 6.6.3. Verifying the RIP Routing Tables
      4. 6.6.4. Configuring RIP Routing Example 2
      5. 6.6.5. Holding Down RIP Propagations
      6. 6.6.6. RIP Version 2 (RIPv2)
    7. 6.7. Interior Gateway Routing Protocol (IGRP)
    8. 6.8. Verifying Your Configurations
      1. 6.8.1. The show ip protocols Command
        1. 6.8.1.1. Troubleshooting with the show ip protocols Command
      2. 6.8.2. The debug ip rip Command
        1. 6.8.2.1. Troubleshooting with the debug ip rip Command
      3. 6.8.3. Enabling RIPv2 on Our Internetwork
    9. 6.9. Summary
    10. 6.10. Exam Essentials
    11. 6.11. Written Lab 6
    12. 6.12. Hands-on Labs
      1. 6.12.1. Hands-on Lab 6.1: Creating Static Routes
      2. 6.12.2. Hands-on Lab 6.2: Configuring RIP Routing
    13. 6.13. Review Questions
    14. 6.14. Answers to Review Questions
    15. 6.15. Answers to Written Lab 6
  14. 7. Layer 2 Switching
    1. 7.1. Before Layer 2 Switching
    2. 7.2. Switching Services
      1. 7.2.1. Limitations of Layer 2 Switching
      2. 7.2.2. Bridging vs. LAN Switching
      3. 7.2.3. Three Switch Functions at Layer 2
        1. 7.2.3.1. Address Learning
        2. 7.2.3.2. Forward/Filter Decisions
        3. 7.2.3.3. Port Security
        4. 7.2.3.4. Loop Avoidance
    3. 7.3. Spanning Tree Protocol (STP)
      1. 7.3.1. Spanning Tree Terms
        1. 7.3.1.1. Spanning-Tree Port States
        2. 7.3.1.2. Convergence
      2. 7.3.2. Cisco Catalyst Switches
        1. 7.3.2.1. S1
        2. 7.3.2.2. S2
        3. 7.3.2.3. Core
    4. 7.4. LAN Switch Types
    5. 7.5. Summary
    6. 7.6. Exam Essentials
    7. 7.7. Written Lab 7
    8. 7.8. Review Questions
    9. 7.9. Answers to Review Questions
    10. 7.10. Answers to Written Lab 7
  15. 8. Wireless Technologies
    1. 8.1. Introducing Wireless Technology
    2. 8.2. The 802.11 Standards
      1. 8.2.1. 2.4GHz (802.11b)
      2. 8.2.2. 2.4GHz (802.11g)
      3. 8.2.3. 5GHz (802.11a)
      4. 8.2.4. Comparing 802.11
      5. 8.2.5. 2.4GHz/5GHz (802.11n)
    3. 8.3. Basic Service Sets
      1. 8.3.1. BSS/IBSS
      2. 8.3.2. ESS
    4. 8.4. Wireless Security
      1. 8.4.1. Open Access
      2. 8.4.2. SSIDs, WEP, and MAC Address Authentication
      3. 8.4.3. WPA or WPA 2 Pre-Shared Key
    5. 8.5. Summary
    6. 8.6. Exam Essentials
    7. 8.7. Written Lab 8
    8. 8.8. Review Questions
    9. 8.9. Answers to Review Questions
    10. 8.10. Answers to Written Lab 8
  16. 9. Security
    1. 9.1. Introduction to Security
      1. 9.1.1. Recognizing Security Threats
      2. 9.1.2. Common Attack Profiles
    2. 9.2. Mitigating Security Threats
      1. 9.2.1. Mitigating Password, Router and Switch Attacks
      2. 9.2.2. Switch Port Security
        1. 9.2.2.1. MAC-Address Security
        2. 9.2.2.2. Securing Unused Ports
    3. 9.3. Virtual Private Networks
    4. 9.4. Summary
    5. 9.5. Exam Essentials
    6. 9.6. Written Lab 9
    7. 9.7. Review Questions
    8. 9.8. Answers to Review Questions
    9. 9.9. Answers to Written Lab 9
  17. 10. Introduction to Wide Area Networks
    1. 10.1. Introduction to Wide Area Networks
      1. 10.1.1. Defining WAN Terms
      2. 10.1.2. WAN Connection Types
      3. 10.1.3. WAN Support
    2. 10.2. Cabling the Wide Area Network
      1. 10.2.1. Serial Transmission
      2. 10.2.2. Data Terminal Equipment and Data Communication Equipment
    3. 10.3. High-Level Data-Link Control (HDLC) Protocol
    4. 10.4. Point-to-Point Protocol (PPP)
      1. 10.4.1. PPP Session Establishment
      2. 10.4.2. PPP Authentication Methods
      3. 10.4.3. Configuring PPP on Cisco Routers
      4. 10.4.4. Configuring PPP Authentication
      5. 10.4.5. Verifying PPP Encapsulation
    5. 10.5. Summary
    6. 10.6. Exam Essentials
    7. 10.7. Written Lab 10
    8. 10.8. Hands-on Labs
      1. 10.8.1. Hands-on Lab 10.1: Configuring PPP Encapsulation and Authentication
      2. 10.8.2. Hands-on Lab 10.2: Configuring and Monitoring HDLC
    9. 10.9. Review Questions
    10. 10.10. Answers to Review Questions
    11. 10.11. Answers to Written Lab 10
  18. A. About the Companion CD
    1. A.1. What You'll Find on the CD
      1. A.1.1. Sybex Test Engine
      2. A.1.2. PDF of the Book
      3. A.1.3. Adobe Reader
      4. A.1.4. Electronic Flashcards
    2. A.2. System Requirements
    3. A.3. Using the CD
    4. A.4. Troubleshooting
      1. A.4.1. Customer Care
  19. Glossary